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Electrical characterization of renal proximal tubule epithelial cell on-a-chip for a nephrotoxic drug screening technology

Research Project

Project/Area Number 20K15311
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 34020:Analytical chemistry-related
Research InstitutionKyoto University

Principal Investigator

Ueno Ryohei  京都大学, 工学研究科, 特定研究員 (80842195)

Project Period (FY) 2020-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords経上皮電気抵抗 / 腎毒性薬剤スクリーニング / 腎臓チップ / Organ-on-a-chip / タイトジャンクション / TEER / Tight junction / Nephrotoxicity / Cisplatin / Oxaliplatin / 腎毒性評価 / 薬剤スクリーニング / 臓器オンチップ / 経上皮電気抵抗測定
Outline of Research at the Start

腎臓の中でも尿中の栄養素の再吸収を行う尿細管は薬剤による腎障害の影響を受けやすい組織であり、様々な薬剤に対する毒性評価を行うことが大変重要である。
本研究では高精度電気測定用マイクロ電極を集積化したチップを開発し、そのチップ上に培養した尿細管細胞のバリア機能および三次元構造を電気的に評価する手法を確立する。
さらに腎毒性薬剤が尿細管細胞に及ぼすバリア機能変化や構造変化を電気的に測定することで、リアルタイム薬剤毒性評価システムの構築を行う。このような薬剤評価技術は腎毒性を回避した薬に関する創薬研究に大きく貢献すると考えられる。

Outline of Final Research Achievements

In this study, we developed a microfluidic system to measure a trans-pithelial electrical resistance (TEER). Immortalized renal proximal tubule epithelial cells were cultured and the TEER of the monolayer was measured in real-time. After the formation of the monolayer, nephrotoxic drugs were introduced and the decrease in TEER was monitored due to a drug induced cellular damage on the monolayer of RPTEC.
Moreover, we monitored capacitance of the monolayer and found that capacitance drastically changed due to a void in the monolayer caused by cellular toxicity of the drugs. These results indicated that capacitance as well as TEER were possibly considered as a biomarker for nephrotoxicity. We beleive that these results will promote the drug screening technology with organ-on-a-chips.

Academic Significance and Societal Importance of the Research Achievements

マイクロ流体デバイス内の細胞層に対する薬剤毒性をTEER測定によって詳細に研究した例は少なく、薬剤評価にTEER測定が実用的に利用できることを示せたことは学術的意義がある。
社会的意義としては、次世代薬剤評価技術の発展につながることである。具体的には近年、創薬研究において動物実験に代替する薬剤評価技術として期待されているOrgan-on-a-chip技術がある。本研究では薬剤評価に電気測定を用いることで高効率な薬剤スクリーニング技術の開発につながると考えられる。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (12 results)

All 2022 2021 2020 Other

All Journal Article (1 results) Presentation (9 results) (of which Int'l Joint Research: 5 results) Remarks (2 results)

  • [Journal Article] Evaluation of Trans-epithelial Electrical Resistance by Removal and Replenishment of Extracellular Ca<sup>2+</sup>2022

    • Author(s)
      Takata Yuji、Ueno Ryohei、Sadeghian Ramin?Banan、Naganuma Kaori、Tsuji Kiyotaka、Fujimoto Kazuya、Yokokawa Ryuji
    • Journal Title

      IEEJ Transactions on Sensors and Micromachines

      Volume: 142 Issue: 2 Pages: 21-28

    • DOI

      10.1541/ieejsmas.142.21

    • NAID

      130008149943

    • ISSN
      1341-8939, 1347-5525
    • Year and Date
      2022-02-01
    • Related Report
      2021 Annual Research Report
  • [Presentation] Monitoring Nephrotoxicity on a Proximal Tubule Mycrophysiological System by Trans-Epithelial Electrical Resistance Measurements.2022

    • Author(s)
      Y. Takata, R. Ueno, R. B. Sadeghian, K. Fujimoto, R. Yokokawa.
    • Organizer
      The 35th International Conference on Micro Electro Mechanical Systems (MEMS 2022)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 近位尿細管上皮細胞のカルシウム受容体活性化による経上皮電気抵抗変化の評価2021

    • Author(s)
      髙田 裕司, 上野 遼平, Ramin Banan Sadeghian, 永沼 香織, 辻 清孝, 横川 隆司.
    • Organizer
      第38回「センサ・マイクロマシンと応用システム」シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] Evaluation of Trans-Epithelial Electrical Resistance of Proximal Tubule Tissue by Inclusion and Removal of Extracellular Calcium Ion.2021

    • Author(s)
      Y. Takata, R. Ueno, R. B. Sadeghian, K. Naganuma, K. Tsuji, R. Yokokawa
    • Organizer
      MEMS2021
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effect of Perfusion Culture on Localization, Intensity, and Functionality of Transporter Proteins in a Bilayer Proximal Tubule-on-a Chip.2021

    • Author(s)
      R. B. Sadeghian, R. Ueno, T. Araoka, J. K. Yamashita, T. Enoki, M. Takasato, R. Yokokawa
    • Organizer
      MEMS2021
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Proximal Tubule on a Chip for Evaluating P-Glycoprotein Transport Property.2021

    • Author(s)
      A. Kawakami, R. Ueno, R. B. Sadeghian, T. Araoka, J. Yamashita, M. Takasato, R. Yokokawa
    • Organizer
      MEMS2021
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effect of Shear Stress on the Expression of Functional Proteins in a Bilayer Proximal Tubule-on-a-Chip.2020

    • Author(s)
      R. B. Sadeghian, R. Ueno, T. Araoka, J. K. Yamashita, T. Enoki, M. Takasato, R. Yokokawa
    • Organizer
      microTAS2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 細胞外カルシウムイオンON/OFFに対する経上皮電気抵抗変化の評価.2020

    • Author(s)
      髙田 裕司, 上野 遼平, Ramin Banan Sadeghian, 永沼 香織, 辻 清孝, 横川 隆司
    • Organizer
      第37回「センサ・マイクロマシンと応用システム」シンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] 近位尿細管上皮細胞のバリア機能とシスプラチンによる細胞毒性の電気測定.2020

    • Author(s)
      上野 遼平, 髙田 裕司, Ramin Banan Sadeghian, 永沼 香織, 辻 清孝, 横川 隆司
    • Organizer
      第37回「センサ・マイクロマシンと応用システム」シンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] Evaluation of Proximal Tubule Cells Extracted from hiPSC-Derived Kidney Organoids Using a Microphysiological System.2020

    • Author(s)
      R. B. Sadeghian, Q. Du, R. Ueno, K. Yabuuchi, Y. Sahara, M. Takasato, R. Yokokawa
    • Organizer
      第42回化学とマイクロナノシステム研究会
    • Related Report
      2020 Research-status Report
  • [Remarks] 京都大学大学院工学研究科マイクロエンジニエアリング専攻横川研究室

    • URL

      https://www.ksys.me.kyoto-u.ac.jp/

    • Related Report
      2021 Annual Research Report
  • [Remarks] 京都大学大学院工学研究科マイクロエンジニアリング専攻横川研究室

    • URL

      https://www.ksys.me.kyoto-u.ac.jp/

    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2023-01-30  

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